This study aims to estimate the real situation of rotavirus gastroenteritis (RV GE) in the primary care settings of both Bulgaria and Latvia in children less than 5 years of age.

A Primary care setting will include independent general practitioners (GP) (specialised in paediatrics) or independent paediatricians.

Stool samples will be collected from all enrolled subjects at Visit 1 (Day 0) and tested immediately after collection. The stool sample will be stored for 24 hours only, in case the test cannot be performed immediately after collection.

Inclusion Criteria:

• Infants/children with home visits by the GPGP/paediatrician for the treatment of AGE or brought to the GP/paediatrician for AGE treatment during the study period.
• A male or female infant/child less than five years of age at the time of the GP/paediatrician visit. A child becomes ineligible on the day of her/his fifth birthday.
• Written informed consent obtained from the parents/legally acceptable representative (LARs) of the subject.
• Subjects who the investigator believes that his/her, parents/LARs can and will comply with the requirements of the protocol.

Exclusion Criteria:

• Child in care.

Infants/children less than five years of age with home visits by the GP/paediatrician for the treatment of AGE or brought to the GP/paediatrician for the treatment of AGE.